The increasing order of the following compounds towards HCN addition is : (i) CHO H3CO (ii) CHO NO2 (iii) CHO OCH3 (iv) CHO O2N (A) (iii)

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Question

The increasing order of the following compounds towards HCN addition is : (i) CHO H3CO (ii) CHO NO2 (iii) CHO OCH3 (iv) CHO O2N

(A) (iii) < (i) < (iv) < (ii)
(B) (i) < (iii) < (iv) < (ii)
(C) (iii) < (iv) < (ii) < (i)
(D) (iii) < (iv) < (i) < (ii)

Prashant Kotian · Accepted Answer

Correct answer: A. –I, – M effect of NO2 increase reactivity towards nucleophilic addition reaction with HCN.

💡 Solution & Explanation